<?php
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @category    Mage
 * @package     Mage_Customer
 * @copyright   Copyright (c) 2014 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */


/**
 * Customers collection
 *
 * @category    Mage
 * @package     Mage_Customer
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Silk_Chinaarea_Model_Resource_Customer_Collection extends Mage_Customer_Model_Resource_Customer_Collection
{
	public function addNameToSelect()
    {
 
        $fields = array();
        $customerAccount = Mage::getConfig()->getFieldset('customer_account');
        foreach ($customerAccount as $code => $node) {
            if ($node->is('name')) {
                $fields[$code] = $code;
            }
        }

        $adapter = $this->getConnection();
        $concatenate = array();
      
        $concatenate[] = 'LTRIM(RTRIM({{firstname}}))';
        
       
       
        
        $nameExpr = $adapter->getConcatSql($concatenate);

        $this->addExpressionAttributeToSelect('name', $nameExpr, $fields);

        return $this;
    }

}